Shelly Pro 4pm - fw 0.12.0 - timer function not working

I have a Shelly Pro 4pm where the timer function does not work.

I'm running the latest firmware 0.12.0 as of 3/1/2023.

I have switch 1 set to auto off after 6 seconds. When I press the button in the web GUI the power button turns blue and the Shelly becomes unresponsive.

Yes, the timer was enabled.

No, they exhibit the same behavior.

The switches on all four channels operate normal without the timer enabled. As soon as you enable the timer on the channel and try to use that channel the unit becomes unresponsive.

Thank you.